bike is bucking
 

ok guys, i have a 02 f4i. recently i have notice that it's bucking more out of turns when i get on it hard lots vibration from the front and the rear is jumping alot more. could this be from tire pressure and if so what is the best pressure to run at? im in tennessee if that helps with pressure as well.

Sounds like you need a bit of a tweak to the rear damping adjustment. Increase the damping to stop it rebounding so quickly.

ok so increase means stiffer or softer? because in some turns it feels like it bottums out on me.

Hmm... that doesn't sound good.
Unless you're a real heavy weight or you're riding at light speed over farm tracks I'd have thought it pretty damned hard to bottom out.
Increasing damping will cause the return stroke of the damper to be slower, which should decrease the 'bucking' effect.
It could be that you're going to need a replacement shock. They have been known to fail.
I'm sure others here will be able to inform you better about the things that can go wrong with CBR rear shocks. So far I've been lucky and not had any problems with mine.
You could try increasing the pre-load to see if it stops the bottoming out but you may end up with a very hard unforgiving ride.

Ok thanks guys ill try messing with the dampering